Where to set preload on short travel lifter?
Increase the valve spring pressure and set the preload near the bottom. At operating temp in this case, you only have .012 to .015 to lose. This is the main principal behind a short travel lifter is, you can’t give up what you don’t have.
What should I consider when choosing a lifter?
A small percentage of the lift and duration ground into the camshaft is absorbed by the hydraulic lifter by design so it deserves consideration when choosing a lifter. Many enthusiasts haggle for days over the cam selection only to mate it with the deal of the week bargain lifter.
What is the HLM framework for intermediate lifters?
The HLM framework recognizes the daily fluctuations in stress that an intermediate lifter will usually require as a means of engaging the adaptive response to training while managing the fatigue of consistent training.
How can I tell if my lifter is on or off?
Now zero the dial indicator and tighten the rocker retaining bolt. You will see the dial indicator needle start moving as the valve spring pressure bleeds the lifter down. When the needle stops, assuming the lifter hasn’t bottomed out, the movement recorded by the dial represents the current preload.
Increase the valve spring pressure and set the preload near the bottom. At operating temp in this case, you only have .012 to .015 to lose. This is the main principal behind a short travel lifter is, you can’t give up what you don’t have.
A small percentage of the lift and duration ground into the camshaft is absorbed by the hydraulic lifter by design so it deserves consideration when choosing a lifter. Many enthusiasts haggle for days over the cam selection only to mate it with the deal of the week bargain lifter.
Now zero the dial indicator and tighten the rocker retaining bolt. You will see the dial indicator needle start moving as the valve spring pressure bleeds the lifter down. When the needle stops, assuming the lifter hasn’t bottomed out, the movement recorded by the dial represents the current preload.
How can pump up be not the lifters fault?
Pump up is normally not the lifters fault. Think about it, oil being fed thru an orifice into a chamber of a fixed dimension. How can that go wrong? Here is a way, the valve is heavy, the valve spring is weak, the cam lobe is aggressively actuating the valve in a manner similar to a baseball pitcher throwing a fastball.